Retort for carbonizing incandescents



(No Model.)

13. J. VAN DEPOELE.

RETORT FOR OARBONI-ZING INOANDESGENTS.

N0.'284,779. Patented Sept. 11, 1883.

WITNESSES: v INVENTOR I czBfYl anflgvoeze.

ATTORNEY.

UNITED ST TES PATENT Orrrcn.

CHARLES J. VAN DEPOELE, OF CHICAGO, ILLINOIS.

RETORT FOR CARBONIZING INCANDESCENTS.

SPECIFICATION formingpart of Letters Patent No. 284,779, dated September 11, 1883.

Application filed April 3, 1883.

Improvements in Retorts for Carbonizing or construction.

in the following manner: I first pass the con-- Electrodes for Incandescent Electric Lamps; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to certain new and useful improvements in retorts for manufacturand the invention consists in the peculiar con- I struction and arrangement of parts, hereinafter described and claimed.

Figure 1 is asectional elevation, showing my retort in use. Fig. 2 is a plan of the carbonizing furnace or oven. Fig. 3 is a vertical section of the same, showing a series of retorts in the oven or furnace.

A is the retort, of tubular form, closed at the bottom, and provided with lugs or a rim forming a support, a, upon which rests a diaphragm, C, which may be formed of any suitable material, but preferably of asbestus, as it is fire-proof, may be readily pierced by the wires to be subsequently passed through it and readily removed from the wires after the carbon-loop has been united to the wires. The retort is provided with an enlarged'collar, 6/, adapted to rest on the perforated plate B of the oven D, which may be of any suitable form I use this retort, preferably,

ducting-wires E through the plate or diaphragm C, and then attach the fiber F in any suitable manner, but preferably by avegetable (No model.)

* collar, G, into which both wire and fiber pass,

and then lower the diaphragm with the fiber into the retort, allowing said diaphragm to rest on the support a. Ith en fill in the upper end of the retort around the glass plug I, through which the wires pass, with ashes, carbon-dust, or other suitable luting material, to exclude the access of fresh air. Suitable heat now being applied, the oven will soon carbonize the fiber and the collar by means of which said fiber is connected with the wires. The plug with the fiber is then removed from the retort and the diaphragm removed from the wires, after which the plug is ready-to be inserted into the mouth or neck of the bulb, such as is ordinarily employed for incandescent lights, the projecting platinum wire forming the means of connec tion with the source of electricity.

I am aware that it has been proposed to provide retorts with gratings to receive lime or other purifying materials through which the gases pass as they are generated in the retort below the grating and therefore make no broad claim to such construction; but

What I claim as my invention is- The open-mouthed retort A, having the collar a to rest on the oven-plate, the support a in combination with a diaphragm resting on the support a, and adapted to receive the wires of an incandescent lamp and to be readily removed therefrom after said wires have been united by the fibrous loop thereof, substantially as described.

cHAnLEs J. VAN DEPOELE.

Witnesses:

ALEXANDER J. R. Frneo, Tnno. P. BAILEY. 

